Improvement in coal-oil stoves



J. MCG. ADAMS. Coa10i1Stove- 10.207.631 Patented sept. 3. 187:3.v

N.PETEns, PHOTO-LITHOGRAPHER. WASHINGTON. D c.

ITE rIAauas PATENT Wr'FIcE.

J. Meenneon ADAMs, or cHIcAeo, ILLINOIS.

IMPROVEMENT yIN COAL-OIL 4STOVES.

Specification forming part of Letters Patent No. 207,637, datedSeptember 3, 1878; application filed March 27, 1878.

To all whom fit may concern:

Be it known that I, J. MCGREGOR ADAMS, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Goal-Oil Stoves; and I do hereby declare the following to be a full,clear, and exact' description thereof, which will enable others skilledin the art to which my invention appertains to make and use the same,reference being had to the accompanying drawing, forming part of thisspecification, in which- Figure l represents a central sectional ele'-vation of a coal-oil stove embodying my said invention, and Fig. 2represents applan of the base vor oil-reservoir, with the superstructureremoved.

My invention relates to that class of coaloil stoves designed moreespecially for the purpose of cooking; and the object of my invention isto improve the construction of such stoves, so as to render them moreconvenient in use, more perfect in operation, and to prevent them frombeing exploded by the formation of explosive gases within theoil-reservoir. To that end my invention consists in the arrangement ofthe several parts, as herein described and claimed.

In the drawing, A represents the oilreser voir, which may be made of anysuitable metal, but preferably of cast-iron, and in any suitable formthat will receive and support the superstructure constituting the stoveproper, but preferably in the form shown in Fig. 2. Permanently securedto each of the respective corners of the oil-reservoirA is a metalcolumn, C, extending upward therefrom, as shown in Fig. l.

D represents a water-reservoir, which is also preferably made of castmetal,and is supported at each of its corners upon one of the columns C,so as to leave an air-space, E, between its lower surface and the uppersurface of the reservoir A, through which space the air can freelycirculate. rlhe central portion of thelower wall or bottom of thereservoir D is raised above the plane of the lower edge of the sidewalls thereof, so as to form an annular recess or chamber, d.

F is an annular perforated diaphragm, which is fitted into the chamberd, so as to leave a space between its upper'surface and the lowersurface of the top or upper wall of the chamber.

G G are deilecting-cones, which are formed on the lower wall or bottomof the reservoir D, and which extend upward through the chamber of saidreservoir to al point slightly above the upper edgeof the side wallsthereof. H is a metal plate, which Ais supported at each corner upon one'of the columns C, and so as to rest upon the upper edge of the walls ofthe reservoir D and yform-a cover to the said reservoir. This plate isprovided with openings formed through the same immediately over therespective cones G G, through which the upper ends of said cones looselyLike letters of reference indicate like parts. u

pass, so as to leave a slight space between the outer surface of thesaid cones and the inner surface Vof the openings, through which ythesteam generated from the water in the reservoir D can freely pass.

J is an annular sheet-metal jacket, which rests upon the plate H, and isheld in place by an annular iiange, e, formed on the upper surface ofthe said plate, so as to t into the lower end ofthe said jacket. J is acastmetal cap, which is fitted upon the upper end of the jacket J, andupon which the cooking utensils are supported. This cap is provided withopenings f ffformed through the same centrally over the openings in theplate H, as shown in Fig. l.

K K are the chimneys, which are fitted between the plate II and cap Jcentrally over the respective cones G G, and are held in place byflanges formed around the openings in the plate and cap, which fiangeslit into the ends of the chimneys, so as to prevent them from beingdisplaced laterally. L is a vertical screw bolt, which passes throughthe plate and cap centrally between the chimneys, so as to rmly connectthe plate, cap, jacket, and chimneys together, so that the latter can beremoved from over the reservoir D when desired.

The several parts which I have so far described are arranged insubstantially the same manner as is shown and described in a previousapplication for Letters Patent filed by me on the 25th day of June,1877, and therefore constitute no part of this invention, and my objectin describing the same is to show with clearness the operation of mypresent invention, which I will now proceed to describe.

C' represents an annular opening, which is formed in the upper wall ofthe oil-reservoir A, centrally therein, and is surrounded by anupward-proj ecting flange or rim, c, formed on the upper surface of thereservoir, as shown in Fig. 1. D' is an annular sheet-metal plate, whichis tted into the opening G', and rmly secured therein by being solderedto the wall of the opening. This plate is provided with openings g g,formed through the same centrally under the openings in the respectivedeilecting-cones Gr G, and through which the wicks loosely pass into theoil-reservoir, as shown in Fig. 1.

M M are receptacles formed of line wire-cloth or finely-perforatedsheet-tin, and are attached to the lower surface of the plate D' aroundthe respective openings g g, and extend downward to a point near thebottom of the reservoir, and into which the respective wicks pass. Thearrangement of these receptacles is such as to allow the oil to freelyflow through the meshes or perforations in the walls thereof, so as tosaturate the wicks 5 and the meshes or perforations are of the requisitedegree of fmeness to prevent the ame from passing through them shouldthe oil or gas within either of the receptacles become ignited, andthereby to prevent the ilame from communicating with the oil in thereservoir outside of the receptacles.

H' is a detlecting-plate, which is depressed at the center, so as toform an annular recess, 7L, the wall of which is of the proper diameterto fit loosely into the rim c, so as to allow the plate proper to restupon the upper edge of the rim, as shown in Fig. l. This plate isprovided at each corner with a proper opening, through which one of thecolumns loosely passes, the object of which is to secure the properadjustment of the plate.

m on represent the wick-tubes, which are permanently attached to thedelecting-plate H', centrally over the respective openings g g in theplate D', and extend upward through the diaphragm F into the respectivedetlectin gcones, as shown in Fig. l, and are each provided with asuitable ratchet for adjusting the wick.

The size of the openings g g in the plate D' is such as to allow thewicks to pass loosely through them into the receptacles, and thearrangement of the deilectingplate is such as to admit of being liftedoff the oil-reservoir when desired, the object of which is to allow thewicks to be easily removed from the receptacles should they becomedisengaged from the wick-tubes by a backward movement of the ratchets. l

The plate D' is inclined from the" center downward and outward towardthe respective openings y y; and' from the periphery downward and inwardtoward the said openings, as shown in Fig. l, the object of which is tocause the oil which may drip from the respective wicks to pass back intothe reservoir.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, in a coal-oil stove, of the plate D', provided withthe openings g g, arranged to allow the respective wicks to pass looselythrough them, wi th the receptacles M M, substantially as and for thepurpose specified.

2. The combination, with the receptacles M M and plate D', provided withthe openings g g, ofthe removable deiecting-plate H', supporting thewick-tubes, and arranged to cover said openings, substantially as andfor the purpose specified.

3. The combination, with the receptacles M M and removabledeiiecting-plate H', supporting the wick-tubes, of the plate D',provided with the openings g g, and inclined from the center outward andfrom its periphery inward toward said openings, substantially as and forthe purpose specified.

J. MCGREGOR AD AMS.

Witnesses:

N. H. SHERBURNE, C. GowLEs.

